Exhaust-muffler.



A. G. SNYDER.

EXHAUST, MUFFLER.

- APPLICATION FILED 001". 16, 1911.

Patented June 4, 1912.

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Qm QM 3 a AUGUSTUS G. SNYDER, 0F UTICA, NEW YORK.

EXHAUST-MUFFLER.

Specification of Letters Patent.

Patented June 4, 1912.

Application filed October 16, 1911. Serial No. 654,925.

To all whom it may concern:

Be it known that I, AUGUSTUS G. SNYDER, a citizen of the United -States,residing at Utica, in the county of Oneida and State of New York, haveinvented or discovered certain new and useful Improvements inExhaust-ltlulllers, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to an improved mufiler for the exhaust ofinternal combustions, and has for its object to provide a mufller whichwill be very etlicient in operation, and which may be manufactured atcomparatively little expense. To this end the improved mufflerpreferably consists of a pan-shaped or discoidal hollow body portionwithin the chamber of which are numerous transverse pins on all or aportion of which are placed loosely coiled wires or springs, to battlethe passage of the exhaust, the said body being provided with inlet andoutlet ports for the passage ofthe products of combustion from theengine. Communicating with the said pan-shaped or discoidal hollow body,and preferably .formed integral therewith, is a second pan-shaped ordiscoidal hollow body containing an inclined perforated plate whichfurther battles the passage of the exhaust, and thus adds to theefficiency of the muffler.

In the accompanying drawing Figure 1 is a broken-out fiat view of theimproved muffler, and Fig. 2 is a broken-out edge view of the same.

Referring to the drawings, the improved mufiler comprises two fiathollow bodies 12 and 13, preferably of discoidal form and havingcommunicating chambers. The chamber of body 12, into which the exhaustfirst enters, is provided with numerous pins 141 a part or all of whichare encircled by loosely coiled wires or'springs'15. The pins 14 maybecast integral with eitherthe body 12, or with the cap or cover plate 17,ormay be formed separate from and be properly secured to either orbothof these parts.

The discoidal bodies 12 and 13 have communicating chambers preferably.afforded by-a connecting pipe--18. Within the chamber of the body 13 isan inclined perforated plate 19 through the apertures in which theexhaust, entering the muffler first at the inlet pipe or part 20,finally leaves the mufller at the outlet pipe or part 21. Within thechamber of the body 13 is a central post 22 to which the perforatedplate 19 is attached in any suitable manner, as by screws 23, and thechamber of the said body 13 is closed by a removable cap or cover plate24. The post 22 may be cast integral with or attached to either the body13 or the cap or cover plate 24.

The discoidal bodies 12 and 13 are preferably-provided with centralopenings 25 for the passage of bolts or screws by which the mufiler isto be secured in place. The caps or cover plates 17 and 24 arepreferably secured in place by screws 26 tapped in lugs 27.

The operation of the improved muttler will be readily understood fromthe foregoing, The passage of the exhaust through the mutller will firstbe battled and mullled by the numerous pins and loosely coiled wires orsprings in the chamber of the body 12, and then be further ballled' andmuflled by the inclined perforated plate in the chamber of the body 13.

Having thus described my invention I claim and desire to secure byLetters Patent:

1. An exhaust mufller comprising two hollow bodies'having communicatingchambers one of which is provided with numerous transverse battlingdevices, and the other of which is provided with an inclined perforatedbafiling plate.

2. An exhaust mufiler comprising two hollow bodies having communicatingchambers one of which is provided with numerous pins and encirclingloosely coiled wires or springs, and the other of which is provided withan inclined perforated battling plate.

3. An exhaust mufller comprising two hollow discoidalbodies havingcommunicating chambers one of which is provided with numerous pins andencircling loosely coiled wires or springs, and the other of which isprovided with an inclined perforated baffling'plate, said discoidalbodies each having a removable cap or cover plate.

In testimony whereof I affix my signature, in presence of two witnesses.

AUGUSTUS Gr. SNYDER.

Witnesses MABEL L. ROWE, R. T. THOMAS.

